The TB blood test can be done instead of a TB skin test (Mantoux). You should have a TB blood (or TB skin test) if you: 1  have HIV infection or your immune system is not very strong.  Children less than 5 years old should have the TB skin test instead of the TB blood test. Ask your health care provider. They will draw a small amount of blood and send it to a laboratory. Your health care provider should tell you if your test result is ânegativeâ or âpositiveâ in a few days.
10 Ways Sugar Harms Your Health. 1  1. Sugar causes blood glucose to spike and plummet. 2  3. Sugar interferes with immune function. 3  3. Romieu, I., Lazcano-Ponce, E., Sanchez-Zamorano, L.M., et al., âCarbohydrates and the Risk of Breast Cancer Among Mexican Women..
A 2012 UCLA study on the effects of sugar demonstrated how sugar affects the brain's memory and learning ability, however a diet high in omega-3 fatty acids will protect the brain from such effects. Physical activity will also keep the brain young, as it increases blood flow to the brain.